[Milsurplus] Johnson Matchbox.. 250-23 , coil details
Bill Cromwell
wrcromwell at gmail.com
Fri Jan 29 19:20:54 EST 2016
Hi Pete,
First..modifying a matchbox to "accommodate" the WARC bands is as easy
as relabeling with a dymo label maker, a crayon, etc. I have two of
those beauties and they already 'accommodate' the WARC bands. We just
have to know where those bands fit in among the band switch labels that
are already there. Then try the band on either side to get your match.
Do you have the manual? I think you can find one on BAMA. There is
something about moving the tap for your receiver for best results -
depending on whether your receiver uses "50 ohm" coax or Hi-Z wires.
That doesn't affect the balanced tuner section, though. Are you sure
what taps you are looking at? I am not sure what my RX tap is set for
but my receivers are happy enough. I have never moved the taps in either
of my Matchboxes.
Yes..pardon me for not removing all those screws, knobs, etc.
73,
Bill KU8H
On 01/29/2016 05:54 PM, Pete Williams wrote:
> G'day list..... I have a Matchbox 250-23 which I suspect may
> have been 'got at' to try mods to WARC band setting.
> However, I want to restore to the original configuration , I'd
> appreciate knowing where the tap points were on the coil each side
> of centre .. As I look at the coil now that I have taken it out
> connection points don't seem to be symmetrical on each side .
> Maybe someone has take the trouble to document this but to
> expect anyone to take their box apart in answer is a bit too
> much to expect.... But thanks for any info.
> Cheers
> Pete VK3IZ
>
>
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